Improvement in cultivators



ZSheets-Sheetl. S. PURDY.

CULTIVATOR. No,179,133 Patented June 27,1876.

'IIHHHIlllINIHlllllllilllilll-llllllllllllllflh IHIHHIIHImlHlIllllIlllillliilllllllllllllllll lllflllfllll N,PEIERS, PNOTO-LITHOGRA'PHERI WASHINGTON, D C

2 Shee'ts-Sheet 2.

S. PURDY.

CULTIVATOR.

Ne 179, 133 Patented June 27,1876.

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NJEIERS, PMOTO-LITHOGRAPMER, WASHINGTON D C.

J NITED STATES STEPHEN PURDY, OF KEWANEE, ILL INOIS.

IMPROVEMENT IN CULTIVATORS.

Specification forming part of Letters Patent No. 179,133, dated J one 27, 1876; application filed August 30, 1875.

To all whom it may concern Be it known that I, STEPHEN PURDY, of Kewanee, in the county of Henry and State of Illinois, have invented certain new and useful Improvements in Cultivators, of which the following is a specification:

'My invention relates to that class of cultivators commonly called straddle-row cultivators, and consists, first, in the peculiar construction of the journal-boxes connecting the plows with the axles of the cultivator, whereby the working parts are readily lubricated and the plows moved either in vertical or lateral direction without changing the position of the draft-frame; secondly, in the combination, with the plow-beams and journal-boxes, of vertical standards adapted to adjust the plows to the required depth of tillage, and of extensible links for the purpose of ad usting each pair of plows to the width of the rows under cultivation.

In the accompanying drawings, Figure l is a plan; Fig. 2, a vertical elevation, one of the driving-wheels being removedyand Fig. 3, a

section through line a: w of Fig.1, of a cultivator constructed according to my invention; and Fig. 4. is a section through the box or bearing Gr, connecting the plow-beams with the driving-axles.

A is the tongue of the class or type known as the divided tongue, said tongue being aflixed to the bolster or transverse brace B in any usual or preferred manner. The tongue A is provided with dividing bars or braces a a, affixed thereto about midway of its length, as shown in Fig. 1 at a", said braces or bars running back at an angle to the tongue A, forming a considerable enlargement at the rear hitching-point, as shown, thus effectually preventing the horses hind feet from trampling down the growing crop. The dividing bars or braces to project some distance in rear of the tongue, and are connected to a ball or yoke'by means of eyebolts c and nuts c ,in such manner as to make the tongue adjustable on said bail both vertically and longitudinally, as will be more fully explained hereinafter.

The lower ends of the vertical arms 0 of the bail O are provided with a collar or perforated enlargement, c fitting loosely over the stub-axles D, on which are mounted the axles are diminished or smaller in circumference. This diminished or smaller portion of the axles is screw-threaded to receive a nut, d, which prevents the yoke or bail G from coming off the axles D, as shown by Figs. 1 and 3. The divided tongue A is further socured and connected to the axles D by means of connecting-links E E and a rod or brace, E The rod or brace traverses and braces together the dividing-bars a at a point immediately in rear of the bolster B, as shown by Figs. 1, 2, and 3, and is provided at both ends, outside of said bars a, with a loop or eye, a, to which one end of the links E E are connected by a loose or toggle joint. The other ends of the links E are connected loosely with the stub-axles D-one, E, immediatelyin rear of the drive-wheels F, .by means of a boxing or bearing, G, mounted loosely upon the axles D, said bearing being formed of two parts, g 9 and constructed in the ordinary form of bearings. The upper part g, however, is provided in front of the axles with a projection or car, 9 to which the link E is hooked or otherwise secured; the other, E is provided with a loop or eye, which fits loosely upon the smaller part of the axles D, and is held in position on one side by the bail O, and on the other by the shoulder formed by the. axles being reduced in diameter, as already stated.

By this peculiar arrangement the links E E form an angle the apex of which. is at e, and said links serve not only to hold the dividing tongue in position and prevent its lateral motion, but also to hold said tongue at any desired height on the bail or yoke 0, thus making said tongue pivotal and adjustable, as already mentioned, not only vertically, but also longitudinally, of the bail and axles, as it will be obvious that, by moving the tongue forward or backward, the apex of the angle formed by the links E IE will be raised or lowered, and, consequently, the tongue with it. Hence, when the cultivator is to be moved from one place to another, the tongue is moved well forward, and, consequently, lowered considerably. The weight thereof at the forward end of the cultivator is naturally increased, and made to counterbalance the weight of the the bars a CI/ for retrunnions Zof the journal-bearings L, consisting of two half-blocks, each provided with a semicircular aperture, l, forming, when united, a circular aperture for the reception and passage of the axle 1). Each of the halfblocks has a trunnion,l, formed thereon,which fit and work in the apertures of the upper and lower plates of the frame h. The upper halfblock is further provided with an oil-passage, Z passing through the trunnion down to the 1 axle D, while the lower half-block is provided with a similar passage, lipassing through such block to the side of its trunnion. An oil-cup, K, fixed over the aperture of the top plate of the frame It, feeds the lubricating material to the trunnion lot" the upper halfblock, and passing around such trunnion to the face of the block, and through the aperture or oil-passage l to the axle and lower half'block, and through such block to the side of its trunnion, keeping all these working parts constantly lubricated, without necessitating their being taken apart for the purpose.

It is evident that, by the peculiar construction of this boxing or hearing H, the plows, when attached to the standards h, may be readily moved vertically by aid of the loose horizontal bearing on the axles D, or they may be moved laterally by means of the pivotal connection of the block L with the frame h, and consequently the plows may at all times be regulated to the desired tillage without changing the position of the draft-frame, or said plows may be raised up and hooked to the bars a a, which are provided at their rear ends with hooks a), when it is desired to move the cultivator from one place to another.

MM are the plow-beams, arranged in pairs on either side. The plow-beam M is rigidly connected to a standard, at, and is provided at its forward end with a perforated lug or car, m The inner and shorter beam M is provided at its forward end with a fork, m adapted to fit over the projection or lug m, and, when connected together. by means of .the pin m forms a pivotal or hinge connection, by means of which the plows may be readily spread apart to suit the width of the rows of the growing crop, and in order to hold the plows in the desired position 1 use two slides, N N, the slides N connecting together the beams M M by having one end affixed to the plow-beam M, while the other is affixed to the handle J. The slides N, on the contrary, connect'the two beams directly together, as shown by Fig. 1. These slides are formed in two parts, and are preferably made of strong sheet metal, one end of each being rigidly and securely affixed to the beams or handles, as described, while the other or free end is provided with lugs or cars n, which are bent over so as to form clasps, which, when the two parts are in position, clasp them securely together in such manner that one part will slide on the other. Each portion or section is provided with a series of holes, and, whenthe plows are adjusted to the desired width of row, they are secured in that posi tion by passing a pin, n through the two sections of the slides N N.

It will be readily understood that, by this arrangement, the plows are easily adjusted, and the slides afford strong braces, whereby said plows are rigidly secured in the desired position.

The handles J are further secured to the plow-beams M by means of braces j, as shown.

The depth of tillage is regulated by raising or lowering the plows on the standards h, the standards m and h being provided with a series of holes for that purpose, and the plows are held in position by bolts and nuts m or set-screws.

O O are the guards, pivoted at 0 to the plow-beam M, the guard bar or handle 0 of which rests in a loop or hook, P, adjustably connected with the beam M by having a longitudinal slot, 19, formed in said hook or loop P, which is held in the desired position by a sct-screw, p, as plainly shown in Fig. 2, where the outer plow-beam M is broken away to show the arrangement of the loop or hook P and the guard 0.

It will be seen that, by this arrangement, the guard may not only be adjusted in relation to the plows, but will readily follow or drag over the surface of the ground and effectually prevent the covering up of the growing crop.

I am aware that divided tongues have been in use heretofore, but as constructed, the dividing-bars running close up to the forward end of the tongue, thereby endangering the limbs'of the horses, and consequently their life, by subjecting them, when unruly and rearing, to getting their fore legs between the dividing-bars and the tongue proper, and breaking them.

Having described my invention, what I claim isl. The combination of the boxes H and the pivot-block L, formed in two parts, each havthe plow-beams and journal-boxes, and the adjustable or extensible links N N, consisting, essentially, of two metallic plates having In witness that I claim the foregoing I have a series of bolt-holes formed therein and prohereunto set my hand this 23dday of July, A. vided With ears or projections at their extrein- D. 1875.

ities, which, when bent over, clasp the two STEPHEN PURDY. plates together, as described, all arranged VVituesscs:

and constructed to admit of it vertical and lat- CHAS. K. LADD eral adjustment of the plows, substantially as G. 0. WILSON,

and for the purposes set forth. J. 0. RICE. 

